Downregulation of Fat Mass and Obesity-Related Protein in the Anterior Cingulate Cortex Participates in Anxiety- and Depression-Like Behaviors Induced by Neuropathic Pain

Wang, Xiao-Ling and Wei, Xin and Yuan, Jing-Jing and Mao, Yuan-Yuan and Wang, Zhong-Yu and Xing, Na and Gu, Han-Wen and Lin, Cai-Hong and Wang, Wen-Ting and Zhang, Wei and Xing, Fei (2022) Downregulation of Fat Mass and Obesity-Related Protein in the Anterior Cingulate Cortex Participates in Anxiety- and Depression-Like Behaviors Induced by Neuropathic Pain. Frontiers in Cellular Neuroscience, 16. ISSN 1662-5102

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Abstract

N6-methyladenosine (m6A) is the most abundant methylation modification on mRNA in mammals. Fat mass and obesity-related protein (FTO) is the main RNA m6A demethylase. FTO is involved in the occurrence and maintenance of neuropathic pain (NP). NP often induces mental disorders. We found that NP downregulated the expression of FTO in the anterior cingulate cortex (ACC), inhibited the expression of matrix metalloproteinase-9 (MMP-9) in the ACC, maladjusted the brain-derived neurotrophic factor precursor (proBDNF) and mature brain-derived neurotrophic factor (mBDNF) levels in the ACC, and induced anxiety- and depression-like behaviors in mice. Blocking the downregulation of FTO in the ACC induced by peripheral nerve injury could reverse the anxiety- and depression-like behaviors of mice. Contrarily, downregulation of simulated FTO induced anxiety- and depression-like behaviors in mice. After peripheral nerve injury, the binding of FTO to MMP-9 mRNA decreased and the enrichment of m6A on MMP-9 mRNA increased. In conclusion, downregulation of FTO in ACC by regulating MMP-9 mRNA methylation level contributes to the occurrence of anxiety- and depression-like behaviors in NP mice.

Item Type: Article
Subjects: West Bengal Archive > Medical Science
Depositing User: Unnamed user with email support@westbengalarchive.com
Date Deposited: 03 Apr 2023 07:43
Last Modified: 28 May 2024 05:40
URI: http://article.stmacademicwriting.com/id/eprint/414

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